25631342000 has 320 divisors, whose sum is σ = 75376604160. Its totient is φ = 8308224000.

The previous prime is 25631341997. The next prime is 25631342029. The reversal of 25631342000 is 24313652.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7104197 + ... + 7107803.

It is an arithmetic number, because the mean of its divisors is an integer number (235551888).

Almost surely, 2^25631342000 is an apocalyptic number.

25631342000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25631342000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37688302080).

25631342000 is an abundant number, since it is smaller than the sum of its proper divisors (49745262160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25631342000 is a wasteful number, since it uses less digits than its factorization.

25631342000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677 (or 3661 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 25631342000 its reverse (24313652), we get a palindrome (25655655652).

The spelling of 25631342000 in words is "twenty-five billion, six hundred thirty-one million, three hundred forty-two thousand".